Apparatus for spraying liquids



L. HELMER APPARATUS FOR SPRAYING LIQUIDS Filed April 20. 1923 3Sheets-Sheet 1 Nov. 9, 1926.

Nqv. 9, 192 7 1,606,295

L. HELMER v APPARATUS FOR SPRAYING LIQUIDS Filed April 20. 1923 3Sheets-Sheet B Queenie;

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HELMER APPARATUS FOR SPRAYING LIQUIDS Filed April 20. 1923 ssneets-sneet aw abtovmm Patented Nov, 9, 1926, p

LOUIS HELMER, or New Yon-K, n1, Y, assrnoia ro ama ainooivnrrromneCORPORATION, OF nnwrorar, in. Y., A CORPORATION on NEW YORK.

ArrARATU's For, SPRAYING LIQUIDS.

Applicationfiled A'p'ri120, 1923: Serial ire/633,376.

This invention relates to an apparatusi'or sprayingliquids. V a a One ofthe objects of the invention is to provide fluid-operated impellingmeans for the spraying unit, and to provide .for the spraying of theexhaust fluid from said impelling means by said unit.- t

Numerous other objects of the invention will appear as the descriptionprogresses and I, therefore,'de'em it unnecessary to enumerate them herein detail.

In the drawing which illustrates one embodiment of my invention,

Figure 1 is a plan view thereof.

Figure 2 is a vertical section view on line 2-2 of Figure 1.

Figure 3 is an end elevation with portion broken away to show thedisposition of the rotor and the exhaust fluid channel, and

Figure 4 is an elevation looking at the opposite end of the mechanism.

The disclosed embodiment of the invention, which is selected merely forthe purpose of illustration and to the details of the construction ofwhich I do not intend to be confined, includes a casing 10. In thiscasing a shaft 11 is supported'by'suitable bearings 12 and 13. Thisshaft extends beyond the end or the casing and the bearing member 13 andcarries a spraying unit 14 which, in the form illustrated, includes aseries of spaced substantial frusto-comcal plates 15, 16, 17, 18 and 19,which plates are secured together by tie bolts 20, which extend throughthe spacer collars as shown in Figure 2. The plates 16 19 are providedwith aligned central openings 21 which increase in diameter toward thecasing 10. The plates are spaced apart so as to provide channels 22through which the fluid passes from the openings 21. The outermost ofthese plates 15 is engaged by a flange on the shank 23 which extendsaxially through the remaining plates and is attached to the end of theshaft 11 by suitable means such as screw threads 23.

While I have illustrated a particular spraying. unit it is to beunderstood that I contemplate the use, not only of this particular unit,but of various other forms of units,

and I do not wish to confine myself to the use or" the illustrated form.

A fluid actuated rotor 24 having a series of radial pockets 25 is rigidwith the shaft 11 and is mounted within the casing 10.

. from the rotor;

In order to impart movement to this rotor by fluid pressure so that thespraying unit 14 will be rotated, I have provided afluid injector 26(see Figure 3) which projects the fluid tangentially of the rotor andagainst the pockets at the upper side thereof.

,The casing. 10 iszprovided with a channel 27- for the" "reception ofthe exhaust fluid This channel merges into a chamber 28 which isprovided with an out let 29 at one side of the casing. This outletdischarges into the spraying unit.

The channel 27 is formed between one side 21; the casing 10 and a wall30 (see Figure which, the rotor 24 operates. A duct 31 communicates withthis compartment to carry away that portion of the exhaust fluid whichis not discharged into the channel 27 in a manner which is apparent.

It will be seen that when the fluid is pro jected against the pockets 25of the rotor motion will be imparted to the latter and through itsconnection with the shaft 11 to the spraying unit 14.

It will also be seen that inasmuch as the pressure fluid is projectedtangentially of This wall defines a compartment in the rotor and againstthe pockets at the upper side thereof, and inasmuch as the wall 30terminates short of the upper end of the rotor, the greater portion ofthe exhaust fluid will pass over the upper end of the wall into thechannel 27 and thence by gravity tofthe receiving chamber 28. From thischamber the fluid will pass by gravity through the outlet 29 to thespraying unit.

The fluid, therefore, is used, not only to ro- I tate the spraying unit,but also to supply the unit with the fluid to be sprayed.

The amount of fluid supplied to the rotor is usually greater than theamount desired tobe sprayed, and for this reason I divide the casinginto the two compartments described, one of which serves as a duct todischarge the fluid in excess of the amount to be sprayed, the other ofwhich is in the form of a passage leading to the spray head.

Because of the arrangement of the rotor, the injection of the fluid atthe upper side thereof and the downward course of the channel 27 to thechamber 28 and the outlet 29 the exhaust fluid flows by gravity to thespraying unit and thus no additional energy to supply the spraying unitwith fluid is re quired.

While I have described a particular embodiment of my invention I do notWish to be limited to the details thereof as it is obvious that manychanges may be made therein Without exceeding the scope of the claims.

What I claim is: 3 r

1. In a mechanism of the class described in combination with a sprayhead, a rotor rigid With the same, means for projecting fluid againstthe rotor, means for conveying a portion of said fluid from the rotor tothe spray head and means for conveying the remainder of the fluid fromthe rotor inclei pendent of the spray head.

for projecting a fluid against said rotor,

said casing having a passage extending from the rotor to the spray head,and a partition in the casing for permitting a portion of the exhaustfluid to pass from the rotor to said passage, said casing having a ductfor conveying the remaining fluid therefrom independent of the rotor.

. 3. In a mechanism of the class described, a casing, ashaft mounted inthe casing, a rotor Within the casing secured to said shaft, means fordelivering fluid to the rotor, and a partition in the casing dividingthe exhaust fluid of the rotor into two portions and defining twocompartments, each pro- Vided with an outlet for the fluid.

In testimony-whereof, I have signed my name to this specification this19th day of April, 1923.

LOUIS HELMEE.

